BCI FingerPrint Hand Held Pulse Oximeter with Printer is a very efficient and portable oximeter with printer. It provides SpO2 and pulse rate measurements. It has an easy to read LED display and prints out immediate hard copy data for easy documenation. The BCI oximeters run on readily available 4 AA batteries. Ideal for hospitals, clinics, physician offices, home care agencies, and personal home use. Comes with 3 rolls of paper.